Home / 31,810.20-43,899.18-17,663.28

Finding the Fourth Proportional to 31,810.20, 43,899.18 and 17,663.28

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Solution

The fourth proportional to 31,810.20, 43,899.18 and 17,663.28 is: 24,375.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,810.20 : 43,899.18 = 17,663.28 : x
  2. Step 2: Convert to fraction form
    31,810.20/43,899.18 = 17,663.28/x
  3. Step 3: Cross multiply
    31,810.20x = 43,899.18 × 17,663.28
  4. Step 4: Simplify right side
    31,810.20x = 775,403,508.11
  5. Step 5: Solve for x
    x = 775,403,508.11/31,810.20
  6. Step 6: Final answer
    x = 24,375.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.